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            <div class="section-title">
              <h1>Version 1.64.0</h1>
            </div>

            <div class="section-body">
              <h2><span class=
              "news-title">Version 1.64.0</span></h2>

              <p><span class=news-date">April 19th, 2017 17:42 GMT</span></p>
              <p><a href="/doc/libs/1_64_0/">Documentation</a>
              <table class="download-table"><caption>Downloads</caption><tr><th scope="col">Platform</th><th scope="col">File</th><th scope="col">SHA256 Hash</th></tr>
<tr><th scope="row" rowspan="2">unix</th><td><a href="https://dl.bintray.com/boostorg/release/1.64.0/source/boost_1_64_0.tar.bz2">boost_1_64_0.tar.bz2</a></td><td>7bcc5caace97baa948931d712ea5f37038dbb1c5d89b43ad4def4ed7cb683332</td></tr><tr><td><a href="https://dl.bintray.com/boostorg/release/1.64.0/source/boost_1_64_0.tar.gz">boost_1_64_0.tar.gz</a></td><td>0445c22a5ef3bd69f5dfb48354978421a85ab395254a26b1ffb0aa1bfd63a108</td></tr>
<tr><th scope="row" rowspan="2">windows</th><td><a href="https://dl.bintray.com/boostorg/release/1.64.0/source/boost_1_64_0.7z">boost_1_64_0.7z</a></td><td>49c6abfeb5b480f6a86119c0d57235966b4690ee6ff9e6401ee868244808d155</td></tr><tr><td><a href="https://dl.bintray.com/boostorg/release/1.64.0/source/boost_1_64_0.zip">boost_1_64_0.zip</a></td><td>b99973c805f38b549dbeaf88701c0abeff8b0e8eaa4066df47cac10a32097523</td></tr></table>
<h3>Third Party Downloads</h3>
<ul>
<li><a href="https://dl.bintray.com/boostorg/release/1.64.0/binaries/">Windows Binaries</a></li>
</ul>

              <div class="news-description">
                <div class="description">


  <div id="version_1_64_0.new_libraries">
    <h3><span class="link">New Libraries</span></h3>
    <ul>
      <li>
        <div>
          <span class="library"><a href="/libs/process/">Process</a>:</span>
  Process library by Klemens
          D. Morgenstern, that provides cross platorm ways to allows you to:
        </div>
        <ul>
          <li>
            <div>
              create child processes
            </div>
          </li>
          <li>
            <div>
              setup streams for child processes
            </div>
          </li>
          <li>
            <div>
              communicate with child processes through streams (synchronously or
              asynchronously)
            </div>
          </li>
          <li>
            <div>
              wait for processes to exit (synchronously or asynchronously)
            </div>
          </li>
          <li>
            <div>
              terminate processes
            </div>
          </li>
        </ul>
        <div>
          Broken feature:
        </div>
        <ul>
          <li>
            <div>
              <a href="https://github.com/klemens-morgenstern/boost-process/issues/67">GitHub
              #67: <em>"group.wait() does not return"</em></a>.
            </div>
          </li>
        </ul>
      </li>
    </ul>
  </div>
  <div id="version_1_64_0.updated_libraries">
    <h3><span class="link">Updated Libraries</span></h3>
    <ul>
      <li>
        <div>
          <span class="library"><a href="/libs/any/">Any</a>:</span>
          <ul>
            <li>
              <div>
                Suppressed false warnings about returning reference to temporary
              </div>
            </li>
            <li>
              <div>
                <code><span class="identifier">boost</span><span class="special">::</span><span class="identifier">addressof</span></code> is now used instead of
                directly taking the address <a href="https://svn.boost.org/trac/boost/ticket/12615">#12615</a>
              </div>
            </li>
            <li>
              <div>
                Headers are not included using double quotes any more <a href="https://svn.boost.org/trac/boost/ticket/12053">#12053</a>
              </div>
            </li>
            <li>
              <div>
                CI tests now run with <code><span class="identifier">address</span></code>,
                <code><span class="identifier">leak</span></code>, and <code><span class="identifier">undefined</span></code> sanitizers
              </div>
            </li>
            <li>
              <div>
                Added more test
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/atomic/">Atomic</a>:</span>
          <ul>
            <li>
              <div>
                Fixed possible incorrect code generation in 64-bit atomic operations
                on 32-bit x86 with gcc versions older than 4.7 and compatible compilers.
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/config/">Config</a>:</span>
          <ul>
            <li>
              <div>
                Added <code><span class="identifier">BOOST_NO_CXX11_SFINAE_EXPR</span></code>
                defect detection.
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/container/">Container</a>:</span>
          <ul>
            <li>
              <div>
                Fixed bugs:
                <ul>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/12749">Trac
                      #12749: <em>"container::pmr::polymorphic_allocator
                      compilation error"</em></a>.
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/11333">Trac
                      #11333: <em>"boost::basic_string_ref should interop
                      with boost::container::basic_string"</em></a>.
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://github.com/boostorg/container/pull/45">GitHub
                      #45: <em>"emplace_back must return reference to
                      back(), not to *end()"</em></a>.
                    </div>
                  </li>
                </ul>
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/context/">Context</a>:</span>
          <ul>
            <li>
              <div>
                new API: call/cc
              </div>
            </li>
            <li>
              <div>
                deprecated API:execution-context
              </div>
            </li>
            <li>
              <div>
                stack manipulation on MIPS fixed
              </div>
            </li>
            <li>
              <div>
                <a href="https://svn.boost.org/trac/boost/ticket/12719">#12719</a> segmentation fault when built with mingw-w64
              </div>
            </li>
            <li>
              <div>
                <a href="https://svn.boost.org/trac/boost/ticket/12948">#12948</a> Unexpected snprintf result is on Android ARM
              </div>
            </li>
            <li>
              <div>
                #38: context_entry() crashes on macOS
              </div>
            </li>
            <li>
              <div>
                #39: Unknown directive .cpu on aarch64 with Clang 3.8 on Android
              </div>
            </li>
            <li>
              <div>
                #41: std::bind() fails with invoke()
              </div>
            </li>
            <li>
              <div>
                #46: "rename of continuation member functions" missed a
                spot
              </div>
            </li>
            <li>
              <div>
                #50: bad assembly for fcontext on ppc64/sysv/elf
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/conversion/">Conversion</a>:</span>
          <ul>
            <li>
              <div>
                Docs were ported to Quickbook (thanks to Mikhail Maksimov for the
                port)
              </div>
            </li>
            <li>
              <div>
                Fixed a memory leak in test (thanks to Mikhail Maksimov for the fix)
              </div>
            </li>
            <li>
              <div>
                CI tests now run with <code><span class="identifier">address</span></code>,
                <code><span class="identifier">leak</span></code>, and <code><span class="identifier">undefined</span></code> sanitizers
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/core/">Core</a>:</span>
          <ul>
            <li>
              <div>
                Implemented <code><span class="keyword">constexpr</span></code>
                <code><span class="identifier">addressof</span></code> on compilers
                that support C++11 <code><span class="keyword">constexpr</span></code>
                and SFINAE expressions (Glen Fernandes). <code><span class="identifier">BOOST_CORE_NO_CONSTEXPR_ADDRESSOF</span></code>
                macro indicates when <code><span class="keyword">constexpr</span></code>
                <code><span class="identifier">addressof</span></code> is not
                available.
              </div>
            </li>
            <li>
              <div>
                In <code><span class="identifier">lightweight_test</span><span class="special">.</span><span class="identifier">hpp</span></code>,
                added new macros <code><span class="identifier">BOOST_TEST_ALL_EQ</span></code>
                and <code><span class="identifier">BOOST_TEST_ALL_WITH</span></code>
                for testing container contents (Bjorn Reese).
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/coroutine2/">Coroutine2</a>:</span>
          <ul>
            <li>
              <div>
                #4: coroutine2&lt;&gt; does not accept std::bind
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/dll/">DLL</a>:</span>
          <ul>
            <li>
              <div>
                Fixed WinCE compilation
              </div>
            </li>
            <li>
              <div>
                Added <code><span class="identifier">boost</span><span class="special">:</span><span class="identifier">dll</span><span class="special">::</span><span class="identifier">symbol_location_ptr</span></code> function for
                getting location of a symbol by pointer that could not be dereferenced
                (<code><span class="keyword">void</span></code> pointer for example)
              </div>
            </li>
            <li>
              <div>
                Fixed UB in <code><span class="identifier">detail</span><span class="special">::</span><span class="identifier">aggressive_ptr_cast</span></code>
                for member pointers
              </div>
            </li>
            <li>
              <div>
                Fixed leaks in experimental smart imports
              </div>
            </li>
            <li>
              <div>
                Fixed warnings
              </div>
            </li>
            <li>
              <div>
                CI tests now run with <code><span class="identifier">address</span></code>
                and <code><span class="identifier">leak</span></code> sanitizers
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/fiber/">Fiber</a>:</span>
          <ul>
            <li>
              <div>
                (un)bounded_channel&lt;&gt; removed
              </div>
            </li>
            <li>
              <div>
                #100: ASIO: unbuffered_channel / scheduler notify issue
              </div>
            </li>
            <li>
              <div>
                #105: skynet variants crash on windows
              </div>
            </li>
            <li>
              <div>
                #106: Passing a fixed_stack allocator to async/packaged_task doesn't
                compile
              </div>
            </li>
            <li>
              <div>
                #110: Compile error on ARMv6
              </div>
            </li>
            <li>
              <div>
                #111: endless-loop in buffered_channel::try_value_pop()
              </div>
            </li>
            <li>
              <div>
                #114: buffered_channel::try_push<code> <span class="identifier">does</span>
                <span class="keyword">not</span> <span class="identifier">wake</span>
                <span class="identifier">fibers</span> <span class="identifier">in</span>
                </code>pop`
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/geometry/">Geometry</a>:</span>
          <ul>
            <li>
              <div>
                Improvements:
                <ul>
                  <li>
                    <div>
                      matrix transformation is now based on Boost.QVM instead of
                      Boost.Ublas
                    </div>
                  </li>
                </ul>
              </div>
            </li>
            <li>
              <div>
                Breaking changes:
                <ul>
                  <li>
                    <div>
                      ublas_transformer is renamed to matrix_transformer
                    </div>
                  </li>
                  <li>
                    <div>
                      explicit modifier is added to constructors of rtree index::dynamic_*
                      parameters
                    </div>
                  </li>
                  <li>
                    <div>
                      strategy::area::huiller replaced by strategy::area::spherical
                    </div>
                  </li>
                </ul>
              </div>
            </li>
            <li>
              <div>
                Solved issues:
                <ul>
                  <li>
                    <div>
                      <a href="https://github.com/boostorg/geometry/issues/363">363</a>
                      Missing includes in geometry/index/parameters.hpp
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://github.com/boostorg/geometry/issues/364">364</a>
                      within(Linear, Areal) compilation error when arguments use
                      different point types
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://github.com/boostorg/geometry/issues/370">370</a>
                      Buffer Seg Faults with Ring as Input
                    </div>
                  </li>
                </ul>
              </div>
            </li>
            <li>
              <div>
                Solved tickets:
                <ul>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/11899">11899</a>
                      boost::geometry::equals doesn't handle open polygons
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/11930">11930</a>
                      Inaccuracy of area::huiller strategy
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/11931">11931</a>
                      Wrong spherical area with pole encircling polygons
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/12410">12410</a>
                      Lack of support of geographic coordinate system in correct()
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/12566">12566</a>
                      Ambiguous template instantiation in equal_to&lt;&gt; when pair
                      value contains raw pointer
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/12861">12861</a>
                      Segmentation fault in stdlibc++ (gcc 4.8.2) affecting rtree
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/12885">12885</a>
                      Use BOOST_THROW_EXCEPTION instead of throw
                    </div>
                  </li>
                </ul>
              </div>
            </li>
            <li>
              <div>
                Bugfixes:
                <ul>
                  <li>
                    <div>
                      Fix distance_measure in get_turn_info
                    </div>
                  </li>
                </ul>
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/functional/hash/">Hash</a>:</span>
          <ul>
            <li>
              <div>
                Stop using <code><span class="identifier">std</span><span class="special">::</span><span class="identifier">unary_function</span></code> and <code><span class="identifier">std</span><span class="special">::</span><span class="identifier">binary_function</span></code> when they're not
                available.
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/interprocess/">Interprocess</a>:</span>
          <ul>
            <li>
              <div>
                Fixed bugs:
                <ul>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/12617">Trac
                      #12617 (<em>"clock_gettime not available on OS X
                      10.11"</em>)</a>.
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/12744">Trac
                      #12744 (<em>"winapi::set_timer_resolution inadvertently
                      changes timer resolution (Windows)"</em>)</a>.
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://github.com/boostorg/interprocess/pull/32">GitHub
                      Pull #32 (<em>"Conform to std::pointer_traits requirements"</em>)</a>.
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://github.com/boostorg/interprocess/pull/33">GitHub
                      Pull #33 (<em>"explicit cast to derived class"
                      and "64/32 bit processes sharing"</em>)</a>.
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://github.com/boostorg/interprocess/pull/34">GitHub
                      Pull #34 (<em>"Update example to use multi_index::member
                      instead of BOOST_MULTI_INDEX_MEMBER"</em>)</a>.
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://github.com/boostorg/interprocess/pull/35">GitHub
                      Pull #35 (<em>"Fixed options for cross-compilation"</em>)</a>.
                    </div>
                  </li>
                </ul>
              </div>
            </li>
            <li>
              <div>
                New experimental option <code><span class="identifier">BOOST_INTERPROCESS_BOOTSTAMP_IS_SESSION_MANAGER_BASED</span></code>
                from Windows systems. This option derives the unique bootstamp used
                to name the folder where shared memory is placed from registry values
                associated with the session manager. This option only works on Vista
                and later systems and might be more stable than the default version.
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/intrusive/">Intrusive</a>:</span>
          <ul>
            <li>
              <div>
                Fixed bugs:
                <ul>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/12745">Boost
                      Trac #12745: <em>key_nodeptr_comp broken if the key type
                      is void*</em></a>
                    </div>
                  </li>
                  <li>
                    <div>
                      <a href="https://svn.boost.org/trac/boost/ticket/12761">Boost
                      Trac #12761: <em>intrusive::set::swap doesn't swap the
                      comparison function*</em></a>
                    </div>
                  </li>
                </ul>
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/lexical_cast/">LexicalCast</a>:</span>
          <ul>
            <li>
              <div>
                Fixed multiple warnings <a href="https://svn.boost.org/trac/boost/ticket/11842">#11842</a>
              </div>
            </li>
            <li>
              <div>
                CI tests now run with <code><span class="identifier">address</span></code>,
                <code><span class="identifier">leak</span></code>, and <code><span class="identifier">undefined</span></code> sanitizers
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/math/">Math</a>:</span>
          <ul>
            <li>
              <div>
                Big push to ensure all functions in also in C99 are compatible with
                Annex F.
              </div>
            </li>
            <li>
              <div>
                Improved accuracy of the Bessel functions I0, I1, K0 and K1, see
                <a href="https://svn.boost.org/trac/boost/ticket/12066">12066</a>.
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/multi_index/index.html">Multi-index Containers</a>:</span>
          <ul>
            <li>
              <div>
                Fixed a bug related to ambiguous references in the presence of more
                than one ranked index (ticket <a href="https://svn.boost.org/trac/boost/ticket/12955">#12955</a>).
              </div>
            </li>
            <li>
              <div>
                Maintenance fixes.
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/multiprecision/">Multiprecision</a>:</span>
          <ul>
            <li>
              <div>
                In <code><span class="identifier">cpp_bin_float</span></code>
                prevent double rounding when converting to a denormalized float.
                See <a href="https://svn.boost.org/trac/boost/ticket/12527">#12527</a>.
              </div>
            </li>
            <li>
              <div>
                Fix bug in integer sqrt for very small integers. See <a href="https://svn.boost.org/trac/boost/ticket/12559">#12559</a>.
              </div>
            </li>
            <li>
              <div>
                Fix conversion to signed-zero in <code><span class="identifier">cpp_bin_float</span></code>.
              </div>
            </li>
            <li>
              <div>
                Change <code><span class="identifier">cpp_bin_float</span></code>
                rounding code to round at arbitrary location so we can use it for
                conversions, see <a href="https://svn.boost.org/trac/boost/ticket/12527">#12527</a>.
              </div>
            </li>
            <li>
              <div>
                Improve performance of 128-bit bit-scan operations.
              </div>
            </li>
            <li>
              <div>
                Fix subtraction of very small quantities in <code><span class="identifier">cpp_bin_float</span></code>.
                See: <a href="https://svn.boost.org/trac/boost/ticket/12580">#12580</a>.
              </div>
            </li>
            <li>
              <div>
                Bring error handling into line with C99 Annex F. See <a href="https://svn.boost.org/trac/boost/ticket/12581">#12581</a>.
              </div>
            </li>
            <li>
              <div>
                Fix bitwise export of trivial <code><span class="identifier">cpp_int</span></code>'s,
                see <a href="https://svn.boost.org/trac/boost/ticket/12627">#12627</a>.
              </div>
            </li>
            <li>
              <div>
                Fix <code><span class="identifier">ilogb</span></code> (and code
                that uses it) to consistently return the smallest value of the exponent
                type when the argument is zero, see <a href="https://svn.boost.org/trac/boost/ticket/12625">#12625</a>.
              </div>
            </li>
            <li>
              <div>
                Allow conversion from <code><span class="identifier">__float128</span></code>
                to <code><span class="identifier">cpp_bin_float</span></code>.
              </div>
            </li>
            <li>
              <div>
                Fix bug in left shift of <code><span class="identifier">cpp_int</span></code>
                which would result in bit-loss, see <a href="https://svn.boost.org/trac/boost/ticket/12790">#12790</a>.
              </div>
            </li>
            <li>
              <div>
                Fixed bugs in bounded but variable precision <code><span class="identifier">cpp_int</span></code>'s
                caused by over-aggressive constexpr optimization, see <a href="https://svn.boost.org/trac/boost/ticket/12798">#12798</a>.
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/predef/">Predef</a>:</span>
          <ul>
            <li>
              <div>
                Fix Intel C/C++ compiler version specification.
              </div>
            </li>
            <li>
              <div>
                Add <code><span class="identifier">BOOST_VERSION_NUMBER_MAJOR</span></code>,
                <code><span class="identifier">BOOST_VERSION_NUMBER_MINOR</span></code>,
                <code><span class="identifier">BOOST_VERSION_NUMBER_PATCH</span></code>
                macros to extract components from valid version numbers.
              </div>
            </li>
            <li>
              <div>
                Change VS version numbering. Versions after VS2015 will use the compiler
                version instead of the varied product versions.
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/regex/">Regex</a>:</span>
          <ul>
            <li>
              <div>
                Compiling with Oracle C++ toolset is no longer restricted to static
                linking.
              </div>
            </li>
            <li>
              <div>
                Big effort to de-fuzz the library using libFuzzer and fix identified
                issues, see: <a href="https://svn.boost.org/trac/boost/ticket/12818">#12818</a>.
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/smart_ptr/">Smart Pointers</a>:</span>
          <ul>
            <li>
              <div>
                Rewrite of <code><span class="identifier">allocate_shared</span></code>
                and <code><span class="identifier">make_shared</span></code> for
                arrays for a more optimal and more maintainable implementation (Glen
                Fernandes)
              </div>
            </li>
            <li>
              <div>
                Pointer cast functions with move semantics (Chris Glover)
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/test/">Test</a>:</span>
          <ul>
            <li>
              <div>
                Boost.test v3.5 see the <a href="/doc/libs/1_64_0/libs/test/doc/html/boost_test/change_log.html">Change
                log</a> section for more details.
              </div>
            </li>
            <li>
              <div>
                New feature:
                <ul>
                  <li>
                    <div>
                      Now Boost.Test provides <strong>customization
                      points</strong> for logging user defined types
                    </div>
                  </li>
                  <li>
                    <div>
                      JUnit output format can now have a <em>log-level</em>
                    </div>
                  </li>
                  <li>
                    <div>
                      JUnit output format has not better performances when the test
                      modules have a lot of checks
                    </div>
                  </li>
                </ul>
              </div>
            </li>
            <li>
              <div>
                Bug fixes
                <ul>
                  <li>
                    <div>
                      Trac tickets <a href="https://svn.boost.org/trac/boost/ticket/11756">#11756</a>, <a href="https://svn.boost.org/trac/boost/ticket/12540">#12540</a>, <a href="https://svn.boost.org/trac/boost/ticket/12712">#12712</a>, <a href="https://svn.boost.org/trac/boost/ticket/12748">#12748</a>,
                      <a href="https://svn.boost.org/trac/boost/ticket/12778">#12778</a>
                    </div>
                  </li>
                  <li>
                    <div>
                      Pull request <a href="https://github.com/boostorg/test/pull/107">PR107</a>,
                      <a href="https://github.com/boostorg/test/pull/108">PR108</a>
                    </div>
                  </li>
                </ul>
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/type_index/">TypeIndex</a>:</span>
          <ul>
            <li>
              <div>
                Added <code><span class="identifier">BOOST_TYPE_INDEX_IMPLEMENT_RUNTIME_CAST</span></code>,
                which implements the functionality for <code><span class="identifier">runtime_cast</span></code>
                but does not include the <code><span class="identifier">BOOST_TYPE_INDEX_REGISTER_CLASS</span></code>
                macro (thanks to Chris Glover for imlpementing it)
              </div>
            </li>
            <li>
              <div>
                Fixed undefined macro warning in stl_type_index.hpp <a href="https://svn.boost.org/trac/boost/ticket/12739">#12739</a>
              </div>
            </li>
            <li>
              <div>
                CI tests now run with <code><span class="identifier">address</span></code>,
                <code><span class="identifier">leak</span></code>, and <code><span class="identifier">undefined</span></code> sanitizers
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/type_traits/">TypeTraits</a>:</span>
          <ul>
            <li>
              <div>
                Added new traits <code><span class="identifier">make_void</span></code>
                and <code><span class="identifier">void_t</span></code>.
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/unordered/">Unordered</a>:</span>
          <ul>
            <li>
              <div>
                Initial support for new C++17 member functions: <code><span class="identifier">insert_or_assign</span></code>
                and <code><span class="identifier">try_emplace</span></code> in
                <code><span class="identifier">unordered_map</span></code>, <code><span class="identifier">merge</span></code> and <code><span class="identifier">extract</span></code>
                in all containers.
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          <span class="library"><a href="/libs/variant/">Variant</a>:</span>
          <ul>
            <li>
              <div>
                Fixed construction of variant from <code><span class="identifier">recursive_variant_</span></code>
                (thanks to Mikhail Maksimov for the fix) <a href="https://svn.boost.org/trac/boost/ticket/12508">#12508</a>, <a href="https://svn.boost.org/trac/boost/ticket/12645">#12645</a>
              </div>
            </li>
            <li>
              <div>
                Do not enable variadic templates for MSVC2015Update1 as it still
                has issues <a href="https://svn.boost.org/trac/boost/ticket/12236">#12236</a>
              </div>
            </li>
            <li>
              <div>
                Workaround GCC6 crash (thanks to Mikhail Maksimov for the workaround)
                <a href="https://svn.boost.org/trac/boost/ticket/12680">#12680</a>, <a href="https://svn.boost.org/trac/boost/ticket/7120">#7120</a>
              </div>
            </li>
            <li>
              <div>
                Made <code><span class="identifier">boost</span><span class="special">::</span><span class="identifier">polymorphic_</span><span class="special">*</span><span class="identifier">get</span></code> to work as <code><span class="identifier">boost</span><span class="special">::*</span><span class="identifier">get</span></code>
                in undocumented border cases and fixed tests <a href="https://svn.boost.org/trac/boost/ticket/11950">#11950</a>
              </div>
            </li>
            <li>
              <div>
                CI tests now run with <code><span class="identifier">address</span></code>,
                <code><span class="identifier">leak</span></code>, and <code><span class="identifier">undefined</span></code> sanitizers
              </div>
            </li>
          </ul>
        </div>
      </li>
    </ul>
  </div>
  <div id="version_1_64_0.compilers_tested">
    <h3><span class="link">Compilers Tested</span></h3>
    <p>
      Boost's primary test compilers are:
    </p>
    <ul>
      <li>
        <div>
          Linux:
          <ul>
            <li>
              <div>
                Clang: 3.0, 3.8.1, 3.9.1
              </div>
            </li>
            <li>
              <div>
                Clang, C++11: 3.0, 3.1, 3.2, 3.3, 3.4, 3.8.1, 3.9.1
              </div>
            </li>
            <li>
              <div>
                Clang, C++14: 3.5, 3.6, 3.7.1, 3.8.1, 3.9.1
              </div>
            </li>
            <li>
              <div>
                Clang, C++1z: 3.9.1
              </div>
            </li>
            <li>
              <div>
                GCC: 4.4.7, 4.5.3, 4.6.3, 4.7.2, 6.2.0
              </div>
            </li>
            <li>
              <div>
                GCC, C++11: 4.4.7, 4.7.2, 4.7.3, 4.8.5, 4.9.4, 6.2.0
              </div>
            </li>
            <li>
              <div>
                GCC, C++14: 5.4.1, 6.2.0, 6.3.0
              </div>
            </li>
            <li>
              <div>
                GCC, C++1z: 6.2.0
              </div>
            </li>
            <li>
              <div>
                Intel: 16.0, 17.0
              </div>
            </li>
            <li>
              <div>
                Intel, C++11: 16.0, 17.0
              </div>
            </li>
            <li>
              <div>
                Intel, C++14: 16.0, 17.0
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          OS X:
          <ul>
            <li>
              <div>
                Apple Clang: 7.0.2
              </div>
            </li>
            <li>
              <div>
                Apple Clang, C++11: 7.0.2
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          Windows:
          <ul>
            <li>
              <div>
                GCC, C++03, mingw: 3.4.5, 4.1.2, 4.2.4, 4.3.3, 4.4.0
              </div>
            </li>
            <li>
              <div>
                GCC, C++11, mingw: 4.6.4, 4.7.3, 4.8.1
              </div>
            </li>
            <li>
              <div>
                GCC, C++14, mingw: 4.9.3, 5.1.0, 5.2.0, 5.3.0, 6.1.0
              </div>
            </li>
            <li>
              <div>
                Visual C++: 7.1, 8.0, 9.0, 10.0, 11.0, 12.0, 14.0
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          Android:
          <ul>
            <li>
              <div>
                Clang: 3.6, 3.7, 3.8
              </div>
            </li>
            <li>
              <div>
                GCC: 4.9, 5.4, 6.2
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          FreeBSD:
          <ul>
            <li>
              <div>
                Clang: 3.8
              </div>
            </li>
            <li>
              <div>
                Clang, C++11: 3.8
              </div>
            </li>
            <li>
              <div>
                Clang, C++14: 3.8
              </div>
            </li>
            <li>
              <div>
                Clang, C++1z: 3.8
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          QNX:
          <ul>
            <li>
              <div>
                QCC: 4.4.2
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          SunOS:
          <ul>
            <li>
              <div>
                Oracle Solaris Studio: 12.5
              </div>
            </li>
            <li>
              <div>
                Oracle Solaris Studio, C++11: 12.5
              </div>
            </li>
          </ul>
        </div>
      </li>
    </ul>
    <p>
      Boost's additional test compilers include:
    </p>
    <ul>
      <li>
        <div>
          Linux:
          <ul>
            <li>
              <div>
                Clang: 3.0, 3.8.1, 3.9.1
              </div>
            </li>
            <li>
              <div>
                Clang, C++11: 3.0, 3.1, 3.2, 3.3, 3.8.1, 3.9.1
              </div>
            </li>
            <li>
              <div>
                Clang, C++14: 3.4, 3.5, 3.6, 3.7. 3.8, 3.8.1, 3.9.1
              </div>
            </li>
            <li>
              <div>
                Clang, C++1z: 3.9.1, 4.0
              </div>
            </li>
            <li>
              <div>
                GCC: 4.4.7, 4.5.3, 4.6.3, 4.7.2, 6.2.0
              </div>
            </li>
            <li>
              <div>
                GCC, C++11: 4.4.7, 4.7.2, 4.7.3, 4.8.5, 4.9.4, 6.2.0
              </div>
            </li>
            <li>
              <div>
                GCC, C++14: 5.4.1, 6.2.0, 6.3.0, 7.0.1
              </div>
            </li>
            <li>
              <div>
                GCC, C++1z: 6.2.0
              </div>
            </li>
            <li>
              <div>
                Intel: 16.0, 17.0
              </div>
            </li>
            <li>
              <div>
                Intel, C++11: 16.0, 17.0
              </div>
            </li>
            <li>
              <div>
                Intel, C++14: 16.0, 17.0
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          OS X:
          <ul>
            <li>
              <div>
                Apple Clang: 7.0.2
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          Windows:
          <ul>
            <li>
              <div>
                GCC, C++03, mingw: 3.4.5, 4.1.2, 4.2.4, 4.3.3, 4.4.0
              </div>
            </li>
            <li>
              <div>
                Visual C++: 7.1, 8.0, 9.0, 10.0, 11.0, 12.0, 14.0, 14.1
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          Android:
          <ul>
            <li>
              <div>
                Clang: 3.6, 3.7, 3.8
              </div>
            </li>
            <li>
              <div>
                GCC: 4.9, 5.4, 6.2
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          FreeBSD:
          <ul>
            <li>
              <div>
                Clang, C++98: 3.8
              </div>
            </li>
            <li>
              <div>
                Clang, C++11: 3.8
              </div>
            </li>
            <li>
              <div>
                Clang, C++14: 3.8
              </div>
            </li>
            <li>
              <div>
                Clang, C++1z: 3.8
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          QNX:
          <ul>
            <li>
              <div>
                QCC: 4.4.2
              </div>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <div>
          SunOS:
          <ul>
            <li>
              <div>
                Oracle Solaris Studio: 12.5
              </div>
            </li>
            <li>
              <div>
                Oracle Solaris Studio, C++11: 12.5
              </div>
            </li>
          </ul>
        </div>
      </li>
    </ul>
  </div>
  <div id="version_1_64_0.acknowledgements">
    <h3><span class="link">Acknowledgements</span></h3>
    <p>
      <a href="/users/people/beman_dawes.html">Beman Dawes</a>, Eric Niebler,
      <a href="/users/people/rene_rivera.html">Rene Rivera</a>, Daniel James,
      Vladimir Prus and Marshall Clow managed this release.
    </p>
  </div>
</div>
              </div>
            </div>
          </div>
        </div>
      </div>

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